Cultivator



No. 749,510. BATEN'TBD JAN. 12, n1904.

l P. J. ZIEGLBR.

GULTIVATOR. APPLIOATION FILED .TUNE 11. 1903.

' N0 MODEL.

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Patented January 12, 1904.

PATENT OFFICE.

FRIEDRICH J. ZIEGLER, OF DEOATUR, ILLINOIS.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 749,510, dated January 12, 1904.

Application filed June 11, 1903. Serial No. 161,083. (No model.)

had therein to the accompanying drawings.

This invention relatesto an attachment for cultivators, and more particularly to that class of cultivators in which it is found desirable to provide means for adjusting the angle of.. the cultivator-teeth; and its object is to provide an attachment by the use of which all of the teeth on one section of the cultivator may be simultaneously set at an angle by the movement of a hand-lever.

A further object of my invention is to provide means whereby thecultivator-teeth may be so adjusted that 'they may be simultaneously set at different angles by the movement of a hand-lever.

In the drawings accompanying this specification, in which a preferable embodiment of my invention is shown, and wherein like characters of reference refer to similar parts in the several views Figure 1 is a perspective view of my attachment secured to one of the sections of a straddle-row cultivator. Fig. 2 is a transverse section of the same, taken through one of the 'cultivator-tooth standards, and Fig. 3 is a detail view of one of the standards, its crank, and securing-nut with the parts detached.

Referring now more particularly to the drawings, A is a section of a straddle-row cultivator having the usual beams B, O, and D, to which the cultivator-teeth are adapted to be secured.

E represents the standards, to which the cultivator-shovels F are adapted to be secured. Each of the standards E consists of the lower portion e, to which the shovels F are clamped, and an upper reduced portion e. The upper reduced portion consists of the cylindrical portion l, the polygonal-shaped portion 2, and the screw-threaded portion 3 for a purpose to be hereinafter more particularly set forth. The beams B, O, and D are provided with the sockets G, into which the cylindrical portion l of the cultivator-standards are journaled when the parts are in their assembled position. When the standards E are secured in the sockets Gr, the polygonal portion 2 and the threaded portion 3 will project above the upper surface of the beams B, C, and I).

H represents a number of crank-arms arranged to be secured to the upper projecting ends of the standards E. Each crank-arm is provided at one end with a polygonal-shaped aperture lz, of the same configuration as the polygonal-shaped portion l of the standard E, and at the other end with an upwardly-extending cylindrical crank L'. Overlying the tops of the beams B, C, and D, but not secured in any manner thereto, is the plate I. The plate I is preferably formed with an open central portion and a narrow peripheral portion c'. The peripheral portion z.' of the plate I is provided with a plurality of circular apertures c, adapted to loosely receive the upwardly-extending cranks L of the crank-arms H. The plate I is held in position upon the cranks la by means of a cotter-pin ff, passing through transverse apertures 3 in the ends of said cranks or in any other suitable manner. The shape of the plate I is not of material consequence, provided that it is of such a size that it is large enough to overlie the ends of all the cranks L' when the crankarms are secured upon the ends of the standards E.

J is a lever pivotally secured at its lower end to the cultivator-beam C. The lever J is provided with the usual hand-operated pawl j, which cooperates with the rack J', secured on the beam O to hold the lever in any desired position.

K is a' link pivotally connected at one end to the lever J by a bolt j and at the other end to the peripheral portion fz; of the plate I by a bolt f2. The link K is twisted intermediate its ends, so that its ends will be fiat on the side of the lever J and the top ofthe plate I.

In the operation of my device the cranks H are iirst placed at any desired angle on the polygonal-shaped portion 2 of the standards E and secured there by means of the nuts N, which screw onto the threaded portion 3 of the standards. The plate I is now connected IOO to the cranks L by the crank-arms E and the lever J to the plate I in the manner hereinbefore set forth. If now the lever J is shifted to its forward position, the plate I will be moved in a forward direction and will through the medium of the crank-arms H cause the standards E to turn in the bearings G. The plate I when moved by the lever J will have a lateral as well as forward movement, and it is to accommodate for this lateral movement that the link K is pivotally connected to the plate I and the lever J. Inasmuch as the faces of the polygonal-shaped portion 2 are all equal in width it will be seen that the crank-arms I-I can be set thereon at any desired angle, and it is therefore possible to so adjust the crank-arms upon the standards that the different teeth of the cultivator may be set simultaneously either at the same angle or at different angles, according as the work to be done requires.

Although I have in the drawings shown my invention as applied to a section of a straddlerow cultivator, I do not desire to limit myself to that form of cultivator, as it is obvious that the same construction might be applied to any type of cultivator, nor do I desire to limit myself to the exact form and construction shown in the drawings, as it is obvious that many minor changes might be made therein without departing from the spirit of the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, isw

l. In a cultivator, a plurality of beams provided with a plurality of apertured bearings, a plurality of cultivator-teeth j ournaled in and projecting above said beams, crank-arms adjustably secured to the projecting ends of said cultivator-teeth, a plate provided with a plurality of apertures arranged to loosely receive the free ends of said crank-arms, and means for shifting the plate.

2. In a cultivator, a plurality of beams provided with a plurality of apertured bearings, a plurality of cultivator-teeth journaled in and projecting above said beams, crank-arms adjustably secured to the projecting ends of said cultivator-teeth, a plate with a plurality of apertures arranged to loosely receive the free ends of said crank-arms, a lever pivoted to one of the beams of the cultivator, and a link connecting the lever and the plate.

3. In a cultivator, a plurality of beams provided With a plurality of apertured bearings, a plurality of cultivator-tooth standards provided at their upper ends with cylindrical portions arranged to fit in said bearings and equisided polygonal-shaped portions arranged to project above the beams whenthe standards are in position, crank-arms provided at one end with polygonal-shaped apertures adapted to adjustably receive the polygonal -shaped portions of the standards, and at the other end with upwardly-extending cranks, a plate overlying all of said crank-arms and provided with a plurality of apertures adapted to loosely receive said cranks, and means for shifting said plate.

4. In a cultivator, la plurality of beams provided with a plurality of apertured bearings, a plurality of cultivator-tooth standards provided at their upper ends with cylindrical portions arranged to fit in said bearings and equisided polygonal-shaped portions arranged to project above the beams when the standards are in position, crank-arms provided at one end with polygonal-shaped apertures adapted to adjustably receive the polygonal-shaped portions of the standards and at the other end with upwardly-extending cranks, a plate overlying all of said crank-arms and provided with a plurality of apertures adapted to loosely receive said cranks, a`lever pivoted to one of the beams of the cultivator and a link connecting said lever and the plate.

In testimony whereof I affix my signature in presence of two witnesses.

FRIEDRICH J. ZIEGLER.

Witnesses:

F. R. GooDE, L. S. CooL. 

